dont_ask_what_im_freaking_doing.rb

require 'ap'
require 'tsort'

$test_data = {
  :b => :a,
  :c => :a,
  :d => :b,
  :e => :b,
  :f => :b,
  :g => :c,
  :h => :c,
  :i => :c,
  :z => :h,
  :x => :h,
  :y => :h
}

class Hash
  include TSort
  alias tsort_each_node each_key
  def tsort_each_child(node, &block)
    fetch(node).each(&block)
  end
end
$test_data.strongly_connected_components

abort

$global_hash = {}

def fill_global_hash
  $test_data.each do |parent, child|
    $global_hash[child] ||= []
    $global_hash[child] << parent
  end
end

=begin
def resolve(root)
  temp = {}
  puts $global_hash[root]
  $global_hash[root].each do |key|
    if $global_hash[key].nil?
      temp[key] = :done
    else
      temp[key] = resolve(key)
    end
  end
  temp
end
=end

fill_global_hash
ap $global_hash

def find_trail(crumb, trail)
end